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Qin Ying, Fan
65721b3f6b
Reviewed-by: Hajba, László Antal <laszlo-antal.hajba@t-systems.com> Co-authored-by: Qin Ying, Fan <fanqinying@huawei.com> Co-committed-by: Qin Ying, Fan <fanqinying@huawei.com>
47 lines
3.5 KiB
HTML
47 lines
3.5 KiB
HTML
<a name="vpc_faq_0004"></a><a name="vpc_faq_0004"></a>
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<h1 class="topictitle1">Which CIDR Blocks Are Available for the VPC Service?</h1>
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<div id="body1436167402735"><div class="p" id="vpc_faq_0004__p426184716228">The following table lists the private CIDR blocks that you can specify when creating a VPC. Consider the following when selecting a VPC CIDR block:<ul id="vpc_faq_0004__en-us_topic_0301367876_ul1703525556"><li id="vpc_faq_0004__en-us_topic_0301367876_li1970311265517">Number of IP addresses: Reserve sufficient IP addresses in case of business growth.</li><li id="vpc_faq_0004__en-us_topic_0301367876_li193282314551">IP address range: Avoid IP address conflicts if you need to connect a VPC to an on-premises data center or connect two VPCs.</li></ul>
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</div>
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<div class="p" id="vpc_faq_0004__p161696336595"><a href="#vpc_faq_0004__table3240172772213">Table 1</a> lists the supported VPC CIDR blocks.
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<div class="tablenoborder"><a name="vpc_faq_0004__table3240172772213"></a><a name="table3240172772213"></a><table cellpadding="4" cellspacing="0" summary="" id="vpc_faq_0004__table3240172772213" frame="border" border="1" rules="all"><caption><b>Table 1 </b>VPC CIDR blocks</caption><thead align="left"><tr id="vpc_faq_0004__row13241142710224"><th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.2.2.2.4.1.1"><p id="vpc_faq_0004__p118612332597">VPC CIDR Block</p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.2.2.2.4.1.2"><p id="vpc_faq_0004__p191869339594">IP Address Range</p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.2.2.2.4.1.3"><p id="vpc_faq_0004__p11187143315590">Maximum Number of IP Addresses</p>
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</th>
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</tr>
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</thead>
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<tbody><tr id="vpc_faq_0004__row112411727192220"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.2.4.1.1 "><p id="vpc_faq_0004__p1518720335597">10.0.0.0/8-24</p>
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</td>
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<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.2.4.1.2 "><p id="vpc_faq_0004__p6187193313593">10.0.0.0-10.255.255.255</p>
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</td>
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<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.2.4.1.3 "><p id="vpc_faq_0004__p718783320596">2^24-2=16777214</p>
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</td>
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</tr>
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<tr id="vpc_faq_0004__row1924172782212"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.2.4.1.1 "><p id="vpc_faq_0004__p8187433175913">172.16.0.0/12-24</p>
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</td>
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<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.2.4.1.2 "><p id="vpc_faq_0004__p11187103314593">172.16.0.0-172.31.255.255</p>
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</td>
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<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.2.4.1.3 "><p id="vpc_faq_0004__p111871233175920">2^20-2=1048574</p>
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</td>
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</tr>
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<tr id="vpc_faq_0004__row18651183342216"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.2.4.1.1 "><p id="vpc_faq_0004__p111881633185911">192.168.0.0/16-24</p>
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</td>
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<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.2.4.1.2 "><p id="vpc_faq_0004__p20188153395916">192.168.0.0-192.168.255.255</p>
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</td>
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<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.2.4.1.3 "><p id="vpc_faq_0004__p518823319599">2^16-2=65534</p>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="faq_vpc.html">VPCs and Subnets</a></div>
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</div>
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</div>
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